Download of AeroFS 100.0 for Mac was on the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The application lies within Communication Tools, more precisely Texting & Video calls.
The following versions: 100.0 and 2.0 are the most frequently downloaded ones by the program users. We recommend checking the downloaded files with any free antivirus. The unique identifier for this app's bundle is com.aerofs.Main. This free software for Mac OS X is an intellectual property of Air Computing Inc. You can run AeroFS on Mac OS X 10.5 or later.
From the developer:
AeroFS lets you join the tens of thousands of businesses across the globe that want to take advantage of the benefits of cloud computing but are unwilling to accept the security and privacy risks of public cloud services.
Note: You must first sign up to use AeroFS. The hybrid cloud service is free for up to three users, and $10 per user per month for four or more users. The private cloud is $15 per user per month.
You may want to check out more software for Mac, such as sipgate, TRx or Instantbird, which might be similar to AeroFS.